The “DLC” in each name can’t really be mistaken. We haven’t located the 3D versions that the menus use; but we haven’t located any of the 3D cup icons in the first place, so there’s no saying they don’t exist. Mind you, in their current form, these icons are missing some files that complete cups have, namely some textures used for effects and similar. When we had the game render these, we had to use the mushroom/flower cup’s effects, which might have caused small drawing errors. The other files might be downloaded someday if these cup icons are to be used for something!

Now, are these just placeholders? Are we misreading information? Is the whole thing a dupe? I have no idea.